I want to add a little more speed to my daughter's 06 TRX 90 and was wandering if changing the sprokets would do it. The stock gearing is 13/50. Which sprocket would I need to change to get a little more top end speed? The TRX is sock all the way and the pink wire has been cut. I really do not want to spend to much money right now. Thanks for all the help guys.

 

Irunwire,sorry to answer your question with a question but what does cutting the pink wire do?Just got my son the same quad for hid b-day but have not gave it to him yet.thanks....ride safe

 

I removed the wire from one of the plugs instead of cutting it in case I need to take it in for warranty work. The pink wire is some kind of rev limiter while in 4th gear. By cutting or disconnecting this wire you pick up a little top end speed, also make sure you remove the round black cap from the air cleaner as this will severely limit your speed. I think I am going to drop the rear sproket to a 48 tooth from a 50 tooth to try to pick up a little more top end speed. I also want to put a free flowing air filter on also. Anybody have any other suggestions? Thanks.